Mexico Prison BreakThis image released by the Attorney Generals Office of the state of Coahuila on Tuesday, Sept. 18, 2012 shows the tunnel that was allegedly used by inmates to escape from a state prison in Piedras Negras, Mexico, that took place on Tuesday Sept. 17, 2012. Officials said Tuesday they suspect the brutal Zetas drug cartel orchestrated the mass tunnel escape of more than 130 inmates at this northern Mexico border prison.
